Mount Polley Mine Tailings Dam Breach: Key Information

Permits, Orders and Reports


Sampling & Monitoring

The B.C. Ministry of Environment and Climate Change Strategy commissioned a report to compile existing data for water, sediment and living organisms in the Quesnel Lake watershed, including Hazeltine Creek and Polley Lake. This information was used to better understand the effects of the 2014 Mount Polley tailings pond breach on aquatic ecosystems. The report describes the steps used to create a searchable database, identifies gaps in the data, and uses the data to compare pre- and post-breach conditions. Recommendations for future work include filling the data gaps and establishing a standard sampling scheme so new data can be easily incorporated into the database for future use.